ArticleExtremophiles : life under extreme conditions2008
Identity and physiology of a new psychrophilic eukaryotic green alga, Chlorella sp., strain BI, isolated from a transitory pond near Bratina Island, Antarctica.
Article in Extremophiles : life under extreme conditions, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 56 citations in OpenAlex.
- Photostasis and photosynthetic adaptation to polar life.Photosynthesis research · 2024Review
- Regulation of Microalgal Photosynthetic Electron Transfer.Plants (Basel, Switzerland) · 2024Review
- High salt-induced PSI-supercomplex is associated with high CEF and attenuation of state transitions.Photosynthesis research · 2023Article
- Article
- Cyclic electron flow (CEF) and ascorbate pathway activity provide constitutive photoprotection for the photopsychrophile, Chlamydomonas sp. UWO 241 (renamed Chlamydomonas priscuii).Photosynthesis research · 2022Article
- Supporting Simultaneous Air Revitalization and Thermal Control in a Crewed Habitat With TemperateFrontiers in microbiology · 2021Article
- Article
- Temperature-Dependent Lipid Accumulation in the Polar Marine MicroalgaFrontiers in plant science · 2020Article
- The Antarctic psychrophiles Chlamydomonas spp. UWO241 and ICE-MDV exhibit differential restructuring of photosystem I in response to iron.Photosynthesis research · 2019Article
- New ecosystems in the deep subsurface follow the flow of water driven by geological activity.Scientific reports · 2019Article
- Identity, ecology and ecophysiology of planktic green algae dominating in ice-covered lakes on James Ross Island (northeastern Antarctic Peninsula).Extremophiles : life under extreme conditions · 2017Article
- Polar Microalgae: New Approaches towards Understanding Adaptations to an Extreme and Changing Environment.Biology · 2014Article
- The Antarctic Chlamydomonas raudensis: an emerging model for cold adaptation of photosynthesis.Extremophiles : life under extreme conditions · 2013Review
- Purification and biochemical characterisation of a glucose-6-phosphate dehydrogenase from the psychrophilic green alga Koliella antarctica.Extremophiles : life under extreme conditions · 2013Article
- Article
- Temperature responses of growth, photosynthesis, fatty acid and nitrate reductase in Antarctic and temperate Stichococcus.Extremophiles : life under extreme conditions · 2012Article
- Article
- Molecular cloning and stress-dependent expression of a gene encoding Delta(12)-fatty acid desaturase in the Antarctic microalga Chlorella vulgaris NJ-7.Extremophiles : life under extreme conditions · 2009Article
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Authors and funding
8 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Permanently low temperature environments are one of the most abundant microbial habitats on earth. As in most ecosystems, photosynthetic organisms drive primary production in low temperature food webs. Many of these phototrophic microorganisms are psychrophilic; however, functioning of the photosynthetic processes of these enigmatic psychrophiles (the "photopsychrophiles") in cold environments is not well understood. Here we describe a new chlorophyte isolated from a low temperature pond, on the Ross Ice Shelf near Bratina Island, Antarctica. Phylogenetic and morphological analyses place this strain in the Chlorella clade, and we have named this new chlorophyte Chlorella BI. Chlorella BI is a psychrophilic species, exhibiting optimum temperature for growth at around 10 degrees C. However, psychrophily in the Antarctic Chlorella was not linked to high levels of membrane-associated poly-unsaturated fatty acids. Unlike the model Antarctic lake alga, Chlamydomonas raudensis UWO241, Chlorella BI has retained the ability for dynamic short term adjustment of light energy distribution between photosystem II (PS II) and photosystem I (PS I). In addition, Chlorella BI can grow under a variety of trophic modes, including heterotrophic growth in the dark. Thus, this newly isolated photopsychrophile has retained a higher versatility in response to environmental change than other well studied cold-adapted chlorophytes.
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